English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The thermodynamic and magnetocaloric properties of a generalizedspin-$(1/2,s)$ Fisher's super-exchange antiferromagnet are exactly investigatedby using the decoration-iteration mapping transformation. Besides the criticaltemperature, sublattice magnetization, total magnetization, entropy andspecific heat, the isothermal entropy change and adiabatic temperature changeare rigorously calculated in order to examine cooling efficiency of the modelin a vicinity of the first- and second-order phase transitions. It is shownthat an enhanced inverse magnetocaloric effect occurs around the temperatureinterval $T_c(B\neq 0) \lesssim T < T_c(B = 0)$ for any magnetic-field change$\Delta B: 0 \to B$. The most pronounced inverse magnetocaloric effect can befound nearby the critical field, which corresponds to the zero-temperaturephase transition from the long-range ordered ground state to the paramagneticone. The observed phenomenon increases with the increasing value of decoratingspins. Furthermore, sufficiently high values of decorating spins have alsolinked to a possibility of observing reentrant phase transitions at finitetemperatures.

Reentrant phenomenon and inverse magnetocaloric effect in a generalized spin-(1/2,s) Fisher's super-exchange antiferromagnet